package com.mammoth.Bodybuilding.util;

import java.security.MessageDigest;

/**
 * 
 * @title : MD5Util
 * @description : MD5加密类
 * @company : com.mammoth.Bodybuilding.util
 * @project Mammoth
 * @author xingzhaojun
 * @date 2018年4月17日 上午11:03:46
 */
public class MD5Util {
	/**
	 * 设置盐
	 */
	private static final String SALT = "mammoth";

	/**
	 * 加密方法
	 * 
	 * @param password
	 * @return
	 */
	public static String encode(String password) {
		password = password + SALT;
		MessageDigest md5 = null;
		try {
			md5 = MessageDigest.getInstance("MD5");
		} catch (Exception e) {
			throw new RuntimeException(e);
		}
		char[] charArray = password.toCharArray();
		byte[] byteArray = new byte[charArray.length];

		for (int i = 0; i < charArray.length; i++) {
			byteArray[i] = (byte) charArray[i];
		}
		byte[] md5Bytes = md5.digest(byteArray);
		StringBuffer hexValue = new StringBuffer();
		for (int i = 0; i < md5Bytes.length; i++) {
			int val = ((int) md5Bytes[i]) & 0xff;
			if (val < 16) {
				hexValue.append("0");
			}

			hexValue.append(Integer.toHexString(val));
		}
		return hexValue.toString();
	}

}
